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Giant Papillary Conjunctivitis (GPC): Symptoms, Causes & Treatment

Giant papillary conjunctivitis (GPC) is a chronic inflammatory condition of the upper tarsal conjunctiva characterized by large (>1 mm) papillae (cobblestone appearance). It results from mechanical irritation and/or immune response to deposits on contact lenses, ocular prostheses, or exposed sutures. It is a type of hypersensitivity reaction (Type I and IV).

Causes & Risk Factors

  • Contact Lenses: Especially soft lenses with protein/lipid deposits; extended wear; silicone hydrogels less prone but not immune.
  • Ocular Prostheses: Poorly fitting or aged artificial eyes.
  • Exposed Sutures: After glaucoma, cataract, or corneal surgery.
  • Allergic Predisposition: Atopy increases susceptibility.

Symptoms

  • Itching (hallmark), burning, foreign body sensation.
  • Excessive mucus discharge (stringy, white).
  • Redness, swelling of upper eyelids.
  • Blurred vision (mucus on lens or corneal epithelial changes).
  • Light sensitivity.
  • Contact lens intolerance (lens moves excessively, rides up, deposits rapidly).

Diagnosis

  • Slit-lamp exam with everted upper lid: giant papillae on tarsal conjunctiva.
  • Fluorescein staining: may show corneal epithelial microcysts or shield ulcer.
  • History of lens wear/prosthesis/surgery.

Treatment

  1. Remove the Inciting Agent: Discontinue contact lenses; switch to glasses temporarily. Replace prosthesis; remove exposed sutures.
  2. Topical Therapy:
    • Mast cell stabilizers (cromolyn, lodoxamide, olopatadine).
    • Antihistamines (ketotifen, azelastine).
    • Short-course mild steroid (loteprednol, fluorometholone) for severe inflammation.
  3. Lens Modifications (if resuming wear): Daily disposables; rigid gas permeable (RGP) lenses; hydrogen peroxide cleaning; strict replacement schedule.
  4. Supportive: Artificial tears, cold compresses.

Prevention

  • Meticulous lens hygiene; rub and rinse even with "no-rub" solutions.
  • Adhere to replacement schedule.
  • Consider daily disposables for allergy-prone patients.
  • Regular follow-ups to detect early signs.

GPC is manageable with prompt intervention and lens regimen modification. Most patients return to successful contact lens wear.

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